Why you want it: Stop feeling weighed down by dozens of loyalty cards. Just snap pictures of all of your discount cards with your phone and CardStar will match them up to hundreds of nationwide retailers. If a merchant is not in their database already, it's super easy to add them in. As an added bonus, CardStar compiles special offers from your favorite retailers that you can access at the tap of a screen. Say bye-bye to your cluttered wallet, and hello to a world of savings.